(Ernst Casimir von Nassau-Dietz, 1573 Dillenburg - 1632 Roermond, ?). Oil on copper. 6 x 4.7 cm. Restored. Minor damage. Provenance: Neumeister, Munich, Auction 263, 18 September 1991, catalogue number 457. Cf. a copper engraving by Willem Jacobsz. Delff (Hollnstein V, page 187, number 51).